Abstract: The present invention provides a drug injection device (100, 100?, 100?) comprising a first element (130) and a second element (102, 102?, 102?) configured to undergo movement relative to each other corresponding to an action performed on or by the drug injection device (100, 100?, 100?), wherein the first element (130) comprises serially disposed protrusions (133), and wherein the second element (102, 102?, 102?) comprises a second element base and a deflectable transducer (170, 170?, 170?). The deflectable transducer (170, 170?, 170?) defines a base portion attached to the second element base, and a deflectable portion (162) configured for sequentially cooperating with the plurality of protrusions (133), wherein a processor (165) is electrically connected with the deflectable transducer (170, 170?, 170?) to register activation signals.

Abstract: A drug delivery device comprising electronic circuitry comprising sensor means adapted to capture a property value related to the dose amount of drug expelled from the reservoir by the expelling means a during an expelling event, storage means adapted to store a plurality of property values to create a data log, and transmission means for wireless transfer of the data log to an external device at a low speed. The transmission means is adapted to listen for and receive a scan request packet whereby the transmission means is operated to wireless transfer of the data log to an external device at a higher speed.

Abstract: The present invention provides a drug delivery device (1) of the type in which a piston rod (10, 110) extends along a reference axis and is forced to rotate in an expelling direction about the reference axis during a dose expelling event to cause an expelling of drug from a drug reservoir (30, 130), and a resilient ratchet element (12) is operatively coupled with the piston rod (10, 110) and undergoes a deflecting motion comprising elastic deformation and recovery in response to an expelling of a predetermined dose increment, which deflecting motion occasions a velocity fluctuation of the piston rod (10, 110), comprising: a rotator module (50, 150) operatively coupled with the piston rod (10, 110) and configured to rotate about the reference axis against a rotation resisting force in response to a rotation of the piston rod (10, 110) in the expelling direction, the rotator module (50, 150) comprising a sensor system (70, 71; 170, 183; 270, 183) for monitoring a torque transferred by the piston rod (10, 110) d

Abstract: The invention provides a method and corresponding devices for wireless pairing of two devices for subsequent secure transmission of data. Each device comprises impact sensor circuitry for detecting an impact event made to the device, and is adapted to determine a unique time related value based on the detected impact event, respectively a corresponding time related value based on the detected impact event. The transmitting device is adapted to calculate a hint H for a key K based on the unique time related value, and the receiving device is adapted to calculate the key K based on the hint H and the corresponding time related value.

Abstract: The invention provides a method for wirelessly communicating a dynamic data log from a data generating device using a transmit-only protocol is provided, the dynamic data log comprising at least one latest data entry, and a plurality of previous data entries. The method comprises the steps of continuously or intermittently transmitting the dynamic data log as a plurality of data packets, wherein the data packets comprise a prioritised packet populated by the at least one latest data entry, and a plurality of regular segment packets, each being populated with a subset of the plurality of previous data entries. The prioritised packet is transmitted more frequently than at least one of the regular segment packets.

Abstract: The present invention provides a drug injection device (100, 100?, 100?) comprising a first element (130) and a second element (102, 102?, 102?) configured to undergo movement relative to each other corresponding to an action performed on or by the drug injection device (100, 100?, 100?), wherein the first element (130) comprises serially disposed protrusions (133), and wherein the second element (102, 102?, 102?) comprises a second element base and a deflectable transducer (170, 170?, 170?). The deflectable transducer (170, 170?, 170?) defines a base portion attached to the second element base, and a deflectable portion (162) configured for sequentially cooperating with the plurality of protrusions (133), wherein a processor (165) is electrically connected with the deflectable transducer (170, 170?, 170?) to register activation signals.

Abstract: An add-on device configured to be releasably attached to a drug delivery device comprising a housing with a reference marker and a scale drum with a zero identifier and an initial marker. The add-on device comprises a memory and a camera adapted to capture an image of the housing reference marker and the initial marker when the scale drum is in a (near) initial position. The add-on device is adapted to perform a reference offset value determination, comprising: capture an image, perform an image analysis to determine if the captured image comprises the zero identifier, if so, determine a reference offset value based on the distance between the housing reference marker and the initial marker, the reference off-set value representing the initial rotational position, and if no reference offset value is stored in the memory or if the determined reference offset value corresponds to a smaller set dose amount than a currently stored value, store in the memory the determined reference offset value.

Abstract: A drug delivery device (100) for estimating the amount of free air in a cartridge (1) comprising a cartridge receiving portion (not shown) adapted to receive a cartridge (1), the cartridge (1) comprising a body portion (6), an axially displaceable piston (5), and a distal outlet portion (4), an expelling assembly comprising an axially displaceable piston drive member (10) adapted to interface with the proximal piston (5) portion of a received cartridge (1), the piston drive member (10) is adapted to be moveable in a distal direction, and to thereby pressurize the drug in a received cartridge. The drug delivery device further comprises means for measuring and acquiring a property relating to a fluid pres-sure of the drug in a received cartridge (1), and where the property depends on the amount of free air (7) contained in the cartridge (1).

Abstract: A drug delivery device comprising a piston rod adapted to engage and axially move a cartridge piston to thereby expel an amount of drug from a loaded cartridge corresponding to a set dose amount, the device comprising a motor for moving the drive member from an initial position, through a start-of-dose position, to an end-of-dose position, as well as position detection means adapted to generate output data indicative of the drive member's position relative to the piston of a loaded cartridge. An electronic controller adapted is adapted operate the motor to continuously move the drive member from the initial position, based on output data from the position detection means determine that the drive member is in engagement with the cartridge piston corresponding to the start-of-dose position, and operate the motor to move the drive member from the start-of-dose position to the an end-of-dose position corresponding to the set dose.

Abstract: The present invention relates to secure paring of electronically controlled devices configured to communicate with each other. A medical system is provided comprising a first unit and a second unit, the system comprising a first communication link allowing a first group of data types to be transmitted between the first unit and the second unit, and a second communication link allowing a second group of data types to be transmitted between the first unit and the second unit. Different properties of the communication links may be used to ensure that certain data, e.g. during pairing of the two devices, can be transmitted in a more controlled way whereas other data can be transmitted in a less controlled way.

Abstract: Method for detecting an end-of-dose condition in a pressurized system, comprising the steps of (a) providing a system having a fluid-filled variable volume reservoir comprising an elastically deformable portion and an outlet, pressurizing means, and means for detecting a property of the elastically deformable portion which varies with the internal pressure in the reservoir, (b) pressurizing the reservoir to expel a desired amount of fluid by applying a force, thereby deforming the elastically deformable portion, (c) measuring, after the actuating step, a property related to the elastically deformable portion as it regains its initial configuration, (d) comparing a value for the measured property with one or more threshold values, and (e) providing a user with an indication when a given threshold value has been reached, and/or when a given threshold value has not been reached within a given period of time.

Abstract: The present invention relates to secure paring of electronically controlled devices adapted to communicate with each other. Thus, a medical system is provided comprising a first unit and a second unit, the system comprising first means of communication allowing a first group of data types to be transmitted between the first unit and the second unit, and second means of communication allowing a second group of data types to be transmitted between the first unit and the second unit. In this way different properties of the two means of communication can be used to secure that certain data, e.g. during pairing of the two devices, can be transmitted in a more controlled way whereas other data can be transmitted in a less controlled way.

Abstract: The present invention relates to secure paring of electronically controlled devices adapted to communicate with each other. Thus, a medical system is provided comprising a first unit and a second unit, the system comprising first means of communication allowing a first group of data types to be transmitted between the first unit and the second unit, the first unit comprising an acoustic transducer having a transducer coil with a plurality of windings, the transducer coil serving as an antenna for wireless signals transmitted between the first and second units. In this way a “par-=asite” property of the acoustic transducer can be used, i.e. using the coil as a receiving means, thereby replacing a receiving structure, e.g. a separate receiver coil or an antenna, which would otherwise have to be provided, this reducing manufacturing costs.